(Note — “license” is also found in Chinook Jargon of the Kamloops, BC area.)

It sounds to me like Judge Smith took a liberty, and that the White newspaper editor is insulting the Indigenous man Johny English for defending his wife’s honor. The disdain comes across loud and clear in Chinook as it would in English, when a pun is made on the American English praise “he’s a real white man” / “mighty white of you”: the Judge is said to be a “real N-word” — by implication, just like Johny and his wife. (Yes, that word was and is used in reference to Native people.)